By means of the Software Thermo-Calculation, the Co-Y system is assessed. It gives the thermody-namic parameters of individual phases, including the solutions bee, fee, hep, liquid and the intermetalliccompounds Co_(1...By means of the Software Thermo-Calculation, the Co-Y system is assessed. It gives the thermody-namic parameters of individual phases, including the solutions bee, fee, hep, liquid and the intermetalliccompounds Co_(17)Y-2, Co_5Y, Co_7Y_2,Co_3Y,Co_2Y, Co_3Y_2,Co_7Y_6,CoY, Co_3Y_4,Co_5Y_8 and CoY-3, whichare treated as stoichiometric compounds. Good agreement is obtained between calculation and experiments.展开更多
The thesis selects freight volume and passenger capacity from 1978 to 2008 in Zhejiang Province and the total output value of the primary industry as the object of research, uses quantitative method of co-integration ...The thesis selects freight volume and passenger capacity from 1978 to 2008 in Zhejiang Province and the total output value of the primary industry as the object of research, uses quantitative method of co-integration analysis to analyze the freight volume and passenger capacity, and the total output value of the primary industry in Zhejiang Province. After the stationary test of the time sequence, I conduct the regression analysis of the relationship between freight volume and the total output value of agriculture, and the relationship between passenger capacity and the total output value of agriculture. In addition, I conduct Granger causality test of the relationship between freight volume and passenger capacity, and the total output value of agriculture. The results show that the transportation of Zhejiang Province has promoted the development of agricultural economy prominently, and the development of agricultural economy plays indistinctive role in promoting the transportation volume in Zhejiang Province.展开更多
基于密度泛函理论,对氧化铟锡(Indium Tin Oxide,ITO)表面负载单原子Y模型的表面性能进行了第一性原理计算.根据表面能计算结果可知,单原子Y最稳定负载位置为空位(H),即确定了ITO负载单原子钇(Single-atom Y supported on ITO,Y/ITO)稳...基于密度泛函理论,对氧化铟锡(Indium Tin Oxide,ITO)表面负载单原子Y模型的表面性能进行了第一性原理计算.根据表面能计算结果可知,单原子Y最稳定负载位置为空位(H),即确定了ITO负载单原子钇(Single-atom Y supported on ITO,Y/ITO)稳定模型.对ITO和Y/ITO表面吸附气体分子(NO和CO)模型的吸附性能进行了第一性原理计算.根据对比ITO和Y/ITO表面的吸附能和态密度计算结果可知,单原子钇负载提高了ITO表面的稳定性和吸附性能.根据对比Y/ITO表面吸附NO和CO气体分子的吸附能和态密度计算结果可知,NO和CO气体分子吸附均为自发行为,过程放热.且NO气体分子更容易吸附在Y/ITO表面,即Y/ITO对NO气体分子更敏感.展开更多
The taxonomic status of Papilio maackii and P.syfanius has long been disputed.We conducted a molecular phylogenetic study to evaluate the taxonomic status of P.maackii and P.syfanius.A total of twenty-four P.maackii i...The taxonomic status of Papilio maackii and P.syfanius has long been disputed.We conducted a molecular phylogenetic study to evaluate the taxonomic status of P.maackii and P.syfanius.A total of twenty-four P.maackii individuals from six localities and sixteen P.syfanius individuals from two localities were analyzed.We sequenced the partial region of the CO-I gene（about 579 bp） and partial CO-II gene sequence（about 655bp） of the two species.The Kimura-2-Parameter distances among P.maackii and P.syfanius ranged from 0 to 0.6%.Fifteen haplotypes were obtained based on the combined data set.The results strongly supported that all P.maackii individuals and all P.syfanius individuals formed a large clade,and could not be divided into separated clades.This research indicated that the two species have only very recently undergone speciation.展开更多
文摘By means of the Software Thermo-Calculation, the Co-Y system is assessed. It gives the thermody-namic parameters of individual phases, including the solutions bee, fee, hep, liquid and the intermetalliccompounds Co_(17)Y-2, Co_5Y, Co_7Y_2,Co_3Y,Co_2Y, Co_3Y_2,Co_7Y_6,CoY, Co_3Y_4,Co_5Y_8 and CoY-3, whichare treated as stoichiometric compounds. Good agreement is obtained between calculation and experiments.
基金Supported by the Program of Characteristic Major (International Economy and Trade) of Zhejiang Province in the Year 2009(TZZ09084)
文摘The thesis selects freight volume and passenger capacity from 1978 to 2008 in Zhejiang Province and the total output value of the primary industry as the object of research, uses quantitative method of co-integration analysis to analyze the freight volume and passenger capacity, and the total output value of the primary industry in Zhejiang Province. After the stationary test of the time sequence, I conduct the regression analysis of the relationship between freight volume and the total output value of agriculture, and the relationship between passenger capacity and the total output value of agriculture. In addition, I conduct Granger causality test of the relationship between freight volume and passenger capacity, and the total output value of agriculture. The results show that the transportation of Zhejiang Province has promoted the development of agricultural economy prominently, and the development of agricultural economy plays indistinctive role in promoting the transportation volume in Zhejiang Province.
文摘基于密度泛函理论,对氧化铟锡(Indium Tin Oxide,ITO)表面负载单原子Y模型的表面性能进行了第一性原理计算.根据表面能计算结果可知,单原子Y最稳定负载位置为空位(H),即确定了ITO负载单原子钇(Single-atom Y supported on ITO,Y/ITO)稳定模型.对ITO和Y/ITO表面吸附气体分子(NO和CO)模型的吸附性能进行了第一性原理计算.根据对比ITO和Y/ITO表面的吸附能和态密度计算结果可知,单原子钇负载提高了ITO表面的稳定性和吸附性能.根据对比Y/ITO表面吸附NO和CO气体分子的吸附能和态密度计算结果可知,NO和CO气体分子吸附均为自发行为,过程放热.且NO气体分子更容易吸附在Y/ITO表面,即Y/ITO对NO气体分子更敏感.
基金National Natural Science Foundation of China (30870359)Anhui Scholar Special Fund in Science and Technology (KJ2009B015)
文摘The taxonomic status of Papilio maackii and P.syfanius has long been disputed.We conducted a molecular phylogenetic study to evaluate the taxonomic status of P.maackii and P.syfanius.A total of twenty-four P.maackii individuals from six localities and sixteen P.syfanius individuals from two localities were analyzed.We sequenced the partial region of the CO-I gene（about 579 bp） and partial CO-II gene sequence（about 655bp） of the two species.The Kimura-2-Parameter distances among P.maackii and P.syfanius ranged from 0 to 0.6%.Fifteen haplotypes were obtained based on the combined data set.The results strongly supported that all P.maackii individuals and all P.syfanius individuals formed a large clade,and could not be divided into separated clades.This research indicated that the two species have only very recently undergone speciation.
